Knotted fishing nets are usually made from nylon monofilaments that are woven into a mesh structure. One of the characteristics of this type of fishing net is the various types of knots used during its production to maintain the integrity and stability of the net. These knots help secure the monofilaments, form the mesh of the net, and provide the strength needed to handle the pull and stress of fishing. This type of fishing net is often used to catch fish of various sizes and has good durability and adaptability.